Electric lamp and discharge devices: systems – Current and/or voltage regulation – Automatic regulation
Patent
1978-10-31
1980-08-26
LaRoche, Eugene R.
Electric lamp and discharge devices: systems
Current and/or voltage regulation
Automatic regulation
315194, 315291, H05B 3904
Patent
active
042197619
ABSTRACT:
A dimmer and regulation circuit connected to an incandescent lamp load for controlling the voltage thereto from an ac source by gating off a portion of each cycle. The circuit used to provide the gating includes a pulse generator controlled by a timer producing a rectangular wave output. The input to the timer is from an operational amplifier, the inputs to which are, in turn, from a variable control voltage setting and from a load sensing network including components for non-linear curve shaping processing, such as in accordance with the IES square law curve. These inputs operate in a closed loop feedback system to provide line and load regulation after the sensed load voltage passes through the square law shaping network. This non-linear network includes a half wave rectifier and a capacitor that is part of two time constant networks, and which accumulates a charge during one-half of a cycle through a first resistance path and which discharges through a second resistance path.
REFERENCES:
patent: 3419753 (1968-12-01), Schultz et al.
patent: 3746970 (1973-07-01), Van Cleave
patent: 3821601 (1974-06-01), Kappenhagen et al.
Esquire, Inc.
LaRoche Eugene R.
Vaden III Frank S.
LandOfFree
Incandescent lamp dimmer providing control voltage IES square la does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Incandescent lamp dimmer providing control voltage IES square la, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Incandescent lamp dimmer providing control voltage IES square la will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1307335